or mr mss dearmy name is an i'm and bukay ruslan official representative of the olmar company (ukraine, lviv city). i'm the and the engineer building farm catfish chief of the main project. i you to letter previous in my of the request written 've the farm equipment of the fish for list catalogue and price.i'm in interested biofilter material. you can send us an examples biofilter material of the like this:the examples will be free for us, delivery post about what?ruslan bukay Show More